N-Nitroso-diethanolamine, 100μg/ml in MeOH, 5ml

Ethanol standard in serum,1.1g/L,serum, 1.5mL

(±)-Nicotine-2,4,5,6-d4 (pyridine-d4),100 µg/mL,acetonitrile,1mL,

Tetracycline, 1000μg/ml in MeOH, 1ml